[polly] r256199 - Add option to assume single-loop scops with sufficient compute are profitable
Tobias Grosser via llvm-commits
llvm-commits at lists.llvm.org
Tue Dec 22 04:32:59 PST 2015
On 12/22/2015 12:09 PM, Johannes Doerfert wrote:
> In this spirit I would like to change the default heuristic to:
> #loops + #blocks > 2
> as that is the condition under which we can perform "by default enabled"
If this results in run-time benefits for at least one application we
care about and no run-time regressions, then I think this is fine.
(I care a little less about compile-time regressions. The more we expose
them, the more visible they become and the more likely we are
to add improvements here).
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